Notebook
The way NotebookLM organizes projects. Notebooks are similar to how folders organize the files on your computer. Each notebook is totally separate, so NotebookLM can’t access information from multiple notebooks at the same time.
Source
A source document is a static copy of a Google doc or Slides you have access to, a PDF file, or text that is copied and pasted directly into the app at the time of the source upload. When using NotebookLM, the model will use the sources you upload to answer your questions or complete your requests.
Citation
A specific block of text and/or image quoted from your source document that is considered relevant to your question and was used by NotebookLM to build the response for you.
Source Overview
A summary of a document that you upload or paste into NotebookLM. Source overview are automatically generated and also offer key topics or questions to ask that will help you better understand the source material.
Audio Overview
Audio Overviews are lively “deep dive” discussions between two AI hosts that summarize the key topics in your sources.